/*
 * Copyright (C) 2023 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.android.tools.idea.logcat.devices

import kotlinx.coroutines.channels.Channel
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.consumeAsFlow
import kotlinx.coroutines.runBlocking
import java.io.Closeable

/** A fake implementation of [IDeviceComboBoxDeviceTracker] for tests */
internal class FakeDeviceComboBoxDeviceTracker : IDeviceComboBoxDeviceTracker, Closeable {

  private var eventChannel = Channel<DeviceEvent>(Channel.UNLIMITED)

  fun addDevices(vararg device: Device) {
    runBlocking {
      val events: List<DeviceEvent> = device.map { DeviceEvent.Added(it) }
      sendEvents(*events.toTypedArray())
    }
  }

  suspend fun sendEvents(vararg events: DeviceEvent) {
    events.forEach { eventChannel.send(it) }
  }

  override suspend fun trackDevices(): Flow<DeviceEvent> = eventChannel.consumeAsFlow()

  override fun close() {
    eventChannel.close()
  }
}
